Ash-conveyer.



A. GIRTANNER.

ASH GONVEYEE.

APPLIOATION FILED MAB.10,1913.

Patented May 12, 1914.

INVEN TOR .lllllIull l UNITED STATES PATENT OFFICE.

ALEXANDER GIRTANNER, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TOJAMES A. DAVIESS, OF ST. LOUIS, MISSOURI.

ASH-GON'VEYER.

Specification of Letters Patent.

Patented May 12, 1914.

To all whom it may concern Be it known that I, ALEXANDER GIRTAN- mm, acitizen of the United States of America, residing at the city of St.Louis, State of Missourhhme invented a certain new and usefulAsh-Conveyer, of which the following is such a full, clear, and exactdescription as will enable any one skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, forming part of this specification.

My invention relates to an ash conveyer and consists of various novelfeatures and details of construction, all of which are described in thefollowing specification and pointed out in the claims afiixed thereto.

In the accompanying drawings, which illustrate a conveyor made inaccordance with my invention, Figure 1 is a side elevation on a reducedscale showing the complete conveyor; Fig. 2 is an enlarged section onthe line 22 of Fig. 3; and Fig. 3 is a sectional view showing the pointof junction between the inlet and discharge pipes.

Like marks of reference refer to similar parts in the several views ofthe drawings.

15 represents a furnace from which the ashes are to be conveyed.Adjacent to each of the furnace doors is a hopper 16.

The various hoppers 16 are included in an inlet pipe 20 forming aportion of the conveyer tube. This inlet pipe 20 joins the dischargepipe 21 at an obtuse angle, as is best shown in Fig. 3 of the drawings.These pipes are brought to ether at an angle for the purpose of proviing an off-set through which a blower nozzle may be introduced into thepipe substantially in line with the discharge pipe 21. In Figs. 2 and 3of the drawings, the off-set 22 is provided with an opening 23 which isclosed by a plate 24 held in position by bolts 25. Passing through anopening 26 in this plate 24 is a steam supply ipe 27 upon the end ofwhich is screwed a Blast nozzle 28. This blast nozzle bears against theplate 24 and is held in position b means of a nut 29 placed around thetube 2; at the: other side of the late. The blast nozzle 28 is slightlytapere and is provided on its interior with spirally arranged ribs 30 inorder to give a twisting motion to the jet of steam as it escapes fromthe nozzle.

Beyond the point of junction of the pi es 20 and 21, I provide anexpansion cham or 40, best shown in Fig. 3. This expansion chamber 40 isentirely unobstructed'so as to allow the steam and ashes to becomehoppers 16. Steam is now admitted to the nozzle 28 where it passes intothe pipe 21. This steam carries along with it the air in the pipe 20 andthus causes a partial vacuum through which medium the ashes are drawnalong the pipe 21 to a position in front of the nozzle where they arecarried out by force of the steam. The use of the unobstructed expansionchamber 40, together with the spinal'ribs on the blast nozzle and on theexpansion chamber causes the ashes and steam to be thoroughly mixed andthus prevents cloggin "of the pipe.

Having fully escribed my invention, what I claim as new and desire tosecure by United States Letters-Patent is:

1. In an ash conveyer, the combination with an inlet 'pipe, of adischarge pipe join-' ing said inlet pipe, and a blast nozzlesubstantially in line with said discharge pipe, said discharge pipebeing provided with an unobstructed expansion chamber adjacent to saidblast nozzle.

2. In an ash conveyer, the combination with an inlet pipe, of adischarge pipe joining said inlet pipe, and a blast nozzle substantiallyin line with said discharge ipe, said discharge pipe being provided witan unobstructed expansion chamber adjacent to said blast nozzle saidexpansion chamber being provided with spiral ribs.

3. In an ash conveyer, the combination with an inlet pipe, of adischarge pipe joining said inlet pipe, and a blast nozzle sub- Intestimony whereof, I have hereunto set stantially in line with saiddischarge pipe, my hand and aflixed my seal in the presence 10 saidglast nozzlg beingdprovided with spii of the two subscribing witnesses.rally isposed ri s,sai ischar e pi ebein s T 6 provided with anunobstruct d ez pansiol l ALEXANDER GIRTAI chamber adjacent to saidblast nozzle, said Witnesses: expansion chamber being provided with spi-G. W. SHORE, rally disposed ribs. W. A. ALEXANDER.

